html - Internet Explorer doesn't expand a flexbox with flex-direction: column

Question

I'm trying to create a container with a static header and a body that expands based on its contents up to a maximum height. After the maximum height is reached, the body should scroll. I've written code that works great in Chrome/Firefox, but in IE, the container doesn't expand correctly.

div{
  border: 1px solid #DDD;
}

.container{
  max-height: 150px;
  display: flex;
  flex-direction: column;
}

.header{
  height: 40px;
}

.scroll{
  flex: 1;
  overflow: auto;
}

<div class="container">
  <div class="header">
    header
  </div>
  <div class="scroll">
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
  </div>
</div>

Answer 1

It appears this code works as intended in Chrome, Firefox and Edge. The problem appears to be IE11.

Here's one solution that appears to work on all four browsers:

• Make the body element a flex container.
• Make one adjustment to the original code (add width: 100%).

html {
  height: 100%;
}
body {
  display: flex;
  height: 100%;
  margin: 0;
}
.container {
  max-height: 150px;
  display: flex;
  flex-direction: column;
  width: 100%;  /* adjustment */
}
.header {
  height: 40px;
}
.scroll {
  flex: 1;
  overflow: auto;
}
div {
  border: 1px solid #DDD;
}

<div class="container">
  <div class="header">
    header
  </div>
  <div class="scroll">
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
    <div>scroll</div>
  </div>
</div>